remove tests/test_permutations.py
remove tests/test_permutations.py

BubuLK/sfepy,sfepy/sfepy,rc/sfepy,sfepy/sfepy,vlukes/sfepy,rc/sfepy,vlukes/sfepy,vlukes/sfepy,BubuLK/sfepy,BubuLK/sfepy,rc/sfepy,sfepy/sfepy